The bill was (according to it's creators) designed to make the utilities reserve the cheapest power for Wyoming residents rather than exporting it all to states

The bill was (according to it's creators) designed to make the utilities reserve the cheapest power for Wyoming residents rather than exporting it all to states where they could get higher retail prices and bigger profits, leaving Wyomings the less reliable and more expensive renewables. In case you missed it the bill only affects energy sold to Wyoming residents, that's only 584,153 people (!). The utilities can sell renewable energy outside the state with no penalty. 'When asked about the motivation for the bill and concerns about it driving away future wind generation, bill sponsor Republican Rep. David Miller from Fremont County said, "Wyoming is a great wind state and we produce a lot of wind energy. We also produce a lot of conventional energy, many times our needs. The electricity generated by coal is amongst the least expensive in the country. We want Wyoming residences to benefit from this inexpensive electrical generation."'